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Content receiving device, and content distribution system

a content receiving device and content technology, applied in the field of copyright management function of content receiving apparatus, can solve the problems of insignificant backup and inconvenience for users, and achieve the effect of improving convenience for users

Active Publication Date: 2013-06-06
MAXELL HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent patent describes a method for managing copyright information when content is exported from a device. The method allows for the setting of restrictions on the copy allowable times while keeping the user's convenience in mind. The user can also check the usage time period for the content by appending a condition to the metadata. The technical effect of this patent is improved protection and management of copyright information while still promoting user convenience.

Problems solved by technology

Further, an inconvenience sometimes occurs such that the contents, which were bought, are all lost since a storage device in the receiver is broken down, therefore, a backup is insignificant.

Method used

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  • Content receiving device, and content distribution system
  • Content receiving device, and content distribution system
  • Content receiving device, and content distribution system

Examples

Experimental program
Comparison scheme
Effect test

embodiment 1

[0056]Number of export or the copy and move allowable times corresponds to a total number of contents for which the user can possess, and when the contents appended with N pieces of the export license is downloaded to an accumulation medium via the network from a content delivery server, copy of (N-1) times and move of once can be executed from one accumulation medium to the other. An acquisition timing of license information to be used for the export corresponds to a time point when executing the export, and one export license is consumed at a time point when even part of the contents can be watched / listened by the medium or device in an export destination.

[0057]For this reason, it is essential that the content copy of once and one export license consumption processing must be executed as one set when the contents purchased by the user is exported in the content delivery service, and even in the copyright management server for executing a license management in the service business ...

embodiment 2

[0145]When the copyright protection of the export destination medium has a function of managing the usage time period of the contents, the content usage time period in the medium is written in the export license, and the usage time period is set as the copyright protection information of the export destination. In consequence, the management of usage time period can be executed in accordance with the copyright protection function of medium even when the medium is taken out to watch / listen the contents by another device.

[0146]That is, even when the exported medium is set in another device to play back the contents, the contents beyond the usage time period can be made disapprove of the watching / listening.

[0147]In such case of executing the export appended with the usage time period, the usage time period described in the metadata appended to the contents is referred, as an export condition, by using the user interface of receiver device, and it is desirable that the export is execute...

embodiment 3

[0212]The following description will be concerned with another configuration example of a download-compatible receiving device providing the export function described in the first and second embodiment.

[0213]FIG. 33 shows the export function to be realized in a third embodiment. A simplicity export is that the content is output to the removable medium or external interface for the export allowable times stated in the purchase agreement to generate a copy. In the removable medium or device coupled with the external interface, the copied contents are managed by the copyright protection function possessed in the copy destination.

[0214]In an extended export function, an arbitrary plural number of times within the export allowable times stated in the purchase agreement is appended to one actual contents as the copy time management information. The export function appended with the copy times to be output of the export and the time limit information of the export stated in the purchase ag...

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PUM

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Abstract

A content receiver comprises: an acceptance unit for accepting a designation of a recording medium to which contents are to be output; a license information acquiring unit for acquiring output license information describing the output requirements of the contents; and an output unit for outputting the contents to the designated recording medium. The output license information includes usage time limit information indicating the time limit of using the contents in an output destination. The output unit acquires the usage time limit information from the output license information for the contents, and sets the acquired usage time limit information to a management information storing area in the designated recording medium, thereby managing the time period of using the contents in the recording medium even if the copyright protection of the recording medium, which is an export destination, has a function to manage the time period of using the contents.

Description

INCORPORATION BY REFERENCE[0001]The present application claims priority from Japanese Patent Application No. 2010-099384 filed on Apr. 23, 2010, the contents of which are hereby incorporated by reference into this application.TECHNICAL FIELD[0002]The technical field relates to a copyright management function of a content receiver apparatus when using services for delivering contents of music and video via Internet, digital broadcastings, etc.BACKGROUND ART[0003]In late years, a content delivery service has been commercialized for delivering various digital contents, such as music, video, etc., and a content copyright management function has increased in importance for restricting playback times for the digital contents accumulated in home receivers, a transfer of the contents, a copy (or dubbing) of DVD-RAM, SD card, etc. to an external storage medium, from the point of view of a copyright protection and user's convenience.[0004]If there is no restriction for copy times, the right f...

Claims

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Application Information

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IPC IPC(8): H04L29/08G06Q10/00
CPCG06Q10/00G06Q50/184H04L67/02
Inventor KOREEDA, HIROYUKIKANAZAWA, RITSUKO
Owner MAXELL HLDG LTD